Free US Shipping on Every Order  |  Volume Discounts Available
Fastenio — Precision Fastening Solutions
3/8-16 316 / A4 Marine-Grade Stainless Steel Button Head Socket Cap Screws — Fully Threaded

3/8-16 316 / A4 Marine-Grade Stainless Steel Button Head Socket Cap Screws — Fully Threaded

SKU: FN-SS-BC-3816-316-FT· 11 lengths

Bulk-Only Item

Minimum order quantity: 50 pieces per pack. Ships 7 business days after your cart reaches the $500 bulk minimum — bulk-only and regularly-stocked items both count. Learn more →

$50.03/ 50 pcs

$1.00/ea

pack

1 pack × 50 = 50 pieces

In Stock
FN-SS-BC-3816-1.75-SS316-CS-FT-HEX-PL
Free US shipping 30-day returns Ships ~7 business days

3/8-16 (inch) 316 / A4 marine-grade stainless steel button head socket cap screws (Allen head), fully threaded, ASME B18.3. 316 stainless adds molybdenum for markedly better resistance to salt water, chlorides and pitting than 18-8 / A2 — the right choice for marine, coastal, pool and chemical service. 7/32" hex socket drive with a low-profile domed head. Fully Threaded across all lengths in this listing (3/4" to 3-1/2"). Sold in production-volume bulk packs.

Material

Stainless Steel

Finish

Plain / Natural

Grade

316 (A4-70)

Size

3/8-16

Drive Type

Hex Socket

Head Style

button

Standard

ASME B18.3

Guides: What does 1/4-20 mean? · 18-8 stainless steel vs. other grades

Technical Specifications

Drive7/32" Hex Socket
Thread CoverageFully Threaded
Head Diameter0.656 in
Head Height0.199 in
Thread3/8-16 Coarse

Order any length — 11 in this family

Type the packs you need and press Add; sort any column.

Head Dia.Head Ht.ThreadingDrivePacks
316 Stainless Steel
3/8-16316 / A4 Marine-Grade Stainless Steel Button Head Socket Cap Screws — Fully Threaded
3/4"0.656 in0.199 inFully threadedHex Socket100FN-SS-BC-3816-0.75-SS316-CS-FT-HEX-PLOut of stock—
1"0.656 in0.199 inFully threadedHex Socket50FN-SS-BC-3816-1-SS316-CS-FT-HEX-PL$26.54$0.53/eapack of 50 · $0.53 ea
1-1/4"0.656 in0.199 inFully threadedHex Socket100FN-SS-BC-3816-1.25-SS316-CS-FT-HEX-PLOut of stock—
1-1/2"0.656 in0.199 inFully threadedHex Socket50FN-SS-BC-3816-1.5-SS316-CS-FT-HEX-PLOut of stock—
1-3/4"0.656 in0.199 inFully threadedHex Socket50FN-SS-BC-3816-1.75-SS316-CS-FT-HEX-PL$50.03$1.00/eapack of 50 · $1.00 ea
2"0.656 in0.199 inFully threadedHex Socket50FN-SS-BC-3816-2-SS316-CS-FT-HEX-PL$43.54$0.87/eapack of 50 · $0.87 ea
2-1/4"0.656 in0.199 inFully threadedHex Socket25FN-SS-BC-3816-2.25-SS316-CS-FT-HEX-PL$24.59$0.98/eapack of 25 · $0.98 ea
2-1/2"0.656 in0.199 inFully threadedHex Socket25FN-SS-BC-3816-2.5-SS316-CS-FT-HEX-PL$25.63$1.03/eapack of 25 · $1.03 ea
2-3/4"0.656 in0.199 inFully threadedHex Socket50FN-SS-BC-3816-2.75-SS316-CS-FT-HEX-PL$48.26$0.97/eapack of 50 · $0.97 ea
3"0.656 in0.199 inFully threadedHex Socket25FN-SS-BC-3816-3-SS316-CS-FT-HEX-PL$36.84$1.47/eapack of 25 · $1.47 ea
3-1/2"0.656 in0.199 inFully threadedHex Socket25FN-SS-BC-3816-3.5-SS316-CS-FT-HEX-PL$38.83$1.55/eapack of 25 · $1.55 ea